; RUN: opt < %s -passes='print<branch-prob>' -disable-output 2>&1 | FileCheck %s declare i32* @"personality_function"() #1 declare void @foo(i32) declare void @bar() declare void @llvm.experimental.deoptimize.isVoid(...) declare void @cold() cold ; Even though the likeliness of 'invoke' to throw an exception is assessed as low ; all other paths are even less likely. Check that hot paths leads to excepion handler. define void @test1(i32 %0) personality i32* ()* @"personality_function" !prof !1 { ;CHECK: edge entry -> unreached probability is 0x00000001 / 0x80000000 = 0.00% ;CHECK: edge entry -> invoke probability is 0x7fffffff / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge invoke -> invoke.cont.unreached probability is 0x00000000 / 0x80000000 = 0.00% ;CHECK: edge invoke -> land.pad probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge land.pad -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] entry: br i1 undef, label %unreached, label %invoke, !prof !2 invoke: invoke void @foo(i32 %0) to label %invoke.cont.unreached unwind label %land.pad invoke.cont.unreached: call void (...) @llvm.experimental.deoptimize.isVoid(i32 10) [ "deopt"() ] ret void unreached: unreachable land.pad: %v20 = landingpad { i8*, i32 } cleanup %v21 = load i8 addrspace(1)*, i8 addrspace(1)* addrspace(256)* inttoptr (i64 8 to i8 addrspace(1)* addrspace(256)*), align 8 br label %exit exit: call void @bar() ret void } define void @test2(i32 %0) personality i32* ()* @"personality_function" { ;CHECK: edge entry -> unreached probability is 0x00000000 / 0x80000000 = 0.00% ;CHECK: edge entry -> invoke probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge invoke -> invoke.cont.cold probability is 0x7fff8000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge invoke -> land.pad probability is 0x00008000 / 0x80000000 = 0.00% ;CHECK: edge land.pad -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] entry: br i1 undef, label %unreached, label %invoke invoke: invoke void @foo(i32 %0) to label %invoke.cont.cold unwind label %land.pad invoke.cont.cold: call void @cold() ret void unreached: unreachable land.pad: %v20 = landingpad { i8*, i32 } cleanup %v21 = load i8 addrspace(1)*, i8 addrspace(1)* addrspace(256)* inttoptr (i64 8 to i8 addrspace(1)* addrspace(256)*), align 8 br label %exit exit: call void @bar() ret void } define void @test3(i32 %0) personality i32* ()* @"personality_function" { ;CHECK: edge entry -> unreached probability is 0x00000000 / 0x80000000 = 0.00% ;CHECK: edge entry -> invoke probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge invoke -> invoke.cont.cold probability is 0x7fff8000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge invoke -> land.pad probability is 0x00008000 / 0x80000000 = 0.00% ;CHECK: edge land.pad -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] entry: br i1 undef, label %unreached, label %invoke invoke: invoke void @foo(i32 %0) to label %invoke.cont.cold unwind label %land.pad invoke.cont.cold: call void @cold() ret void unreached: unreachable land.pad: %v20 = landingpad { i8*, i32 } cleanup %v21 = load i8 addrspace(1)*, i8 addrspace(1)* addrspace(256)* inttoptr (i64 8 to i8 addrspace(1)* addrspace(256)*), align 8 call void @cold() br label %exit exit: call void @bar() ret void } attributes #1 = { nounwind } !1 = !{!"function_entry_count", i64 32768} !2 = !{!"branch_weights", i32 1, i32 983040}